Answer:
Answers: (to the nearest hundredth)
Between two cars,
Central angle = 0.39 radians (or 71.4°)
Arc length = 7.85 ft
Area of a sector = 78.54 ft²
Step-by-step explanation:
Answer:
(1.6, 6)
Step-by-step explanation:
y = 6
Answer:
- 10.7 liters of paint required
Step-by-step explanation:
Dimensions of the room
- 7.7 m by 14.8 m with the height of 2.4 m
Find the surface area of the 4 walls
- A = Ph = 2(l + w)h = 2(7.7 + 14.8)*2.4 = 108 m²
Convert the area to ft²
- 108 m² = 108*10.7639 ft² = 1162.5012 ft²
Find the amount of paint required
- 1162.5012/410 = 2.84 gal (rounded)
Covert the volume to liters
- 2.84 gal = 2.84*3.76 l = 10.7 l (rounded)
<span> 3.48 is already written as a decimal
----------------------
if 3/48 = 0.0625 </span>as a decimal
Answer:
4 sqrt(2) - sqrt(70)
Step-by-step explanation:
Simplify the following:
(4 sqrt(14) + 4 sqrt(10)) (3 sqrt(7) - 4 sqrt(5))
Factor 4 out of 4 sqrt(14) + 4 sqrt(10) giving 4 (sqrt(14) + sqrt(10)):
4 (sqrt(14) + sqrt(10)) (3 sqrt(7) - 4 sqrt(5))
(sqrt(10) + sqrt(14)) (3 sqrt(7) - 4 sqrt(5)) = sqrt(10) (-4 sqrt(5)) + sqrt(10)×3 sqrt(7) + sqrt(14) (-4 sqrt(5)) + sqrt(14)×3 sqrt(7) = -20 sqrt(2) + 3 sqrt(70) - 4 sqrt(70) + 21 sqrt(2) = sqrt(2) - sqrt(70):
Answer: 4 sqrt(2) - sqrt(70)
